Printer&#39;s blanket



July 14, 1925. 1,545.626

G. L. WILLSON PRINTERS BLANKET Filed March 9, 1921 91. .-ITTORNEY.

Patented July 14, 1925.

UNITED STATES GEORGE L. WILLSON,

OF NEW YORK, N. Y.-

PBINTERS BLANKET.

Application filed March 9, 1921.

T 0 all whom it may concern:

Be it known that I, GEORGE L. IVILLsoN, a citizen of the United States, residing at New York, in the county and State of New York, have invented certain new and useful Improvements in Printers Blankets, of which the following is a specification, reference being had therein to the accompanying drawing.

The invention relates to printers blankets, and has for an object to provide a device of the character referred to which shall be highly efficient and at the same time economical in construction and operation. These and other objects of the invention will in part be obvious and in art more fully set forth in the following description:

The invention consists in the novel combinations, features of construction, and improvcmcnts herein shown and described.

In the accompanying drawing which is referred to herein and made a part hereof, is illustrated a preferred embodiment of the invention, the same serving in connection with the descri tion herein to illustrate the principles of t 1e invention.

Of the drawing:

Fig. 1 is a side elevation of a portion of a printer's blanket constructed in accordance with the invention;

Fig. 2 is an end view of an impression cylinder showing an embodiment of this invention arranged thereon, parts being broken away.

A printers blanldet constructed in accordance with one featnre of the invention includes in combination inner and outer sheets, each of resilient material and of a thickness less than standard and adapted for imprinting directly thereon, both sheets being associated to present a combined thickness equal to standard; said sheets being interchangeable in their relative positions and each af fording a suitable impression surface so that an. inner sheet may be transposed and become the outer sheet to form the impression receiving surface of the blanket. In one embodiment of this feature of the invention. said iesilient sheets are made each with a fabric base and a body portion of comminuted cork having a suitable binder and secured to said base. These and other features of the invention will be more fully Serial No. 450,953.

set forth and described in the following specification In the operation of a printing press, it happens from various causes that a portion of the printing surface becomes damaged or loses its proper degree of resiliency and it becomes necessary to replace the impression surface. In such a case, with the printers blanket as heretofore constructed it was necessary to remove the entire blanket in order to replace the same with a new blanket having a fresh impression surface. This was wasteful and caused undue delay which, especially in the case of newspaper presses, might be very inconvenient and expensive.

The prime feature therefore of the invention resides in the means provided for avoiding the expense and delay incidental to changing the entire blanket. As shown, this end is accomplished by making the. blanket of a number of independent resilient portions or sheets. As heretofore described, these sheets in actual operation may have their relative positions changed so that if the impression surface. of an outer sheet becomes damaged, an inner sheet may be removed from its position and placed outside the said outer sheet, thus presenting a fresh impression surface, while at the same time permitting the damaged sheet to be used in its new position as a portion of the blanket. It will be seen that it is desirable that these separate interchangeable sheets should have a uniform resiliency, and therefore preferably they are made of the same resilient material.

Referring in detail to the drawings, there is illustrated in Fig. 1 a preferred embodiment of the invention. As shown, this consists of a sheet 4 arranged on the surface of the impression cylinder of a printing press and having a base 5 made of fabric material and a body ortion made of a suitable resilient material. This body portion is prefcrab] made of the substance known commercially as insole and which consists of comminuted cork held together with a suitable binding agent, the whole adhering to the base portion. superposed on the sheet 4 is another sheet '2' made of suitable resilient material, preferably being constructed in like manner and of the same materials as the sheet 4. However constructed, it is IUD desirable, as heretofore stated, that the sheet 7 be made of a material having the same degree of resiliency as the sheet 4. It will be seen that each of said sheets is of a character adapted for imprinting directly thereon, and it is to be noted that each sheet is of a thickness less than standard and that both sheets, when associated, present a combined thickness equal to standard, in the particular embodiment shown each sheet being of a thickness approximately half of standard.

Each of said sheets 4 and 7 has at one end an extension or tail piece of fabric by means of which it is fastened at said end to one of the reels or clamps 13 within the cylinder 8, as shown in Fig. 2. The sheets are held in place on the impression cylinder 8 by a top or draw-sheet 9 which covers the impression sheets 4 and 7 and is suitably attached at its opposite ends to both the reels or clamps 13 wit in the cylinder, as shown in said F1 2, one or both of the reels being revolve as necessary, to efl'ect the securing in place of the impression sheets by the draw sheets. It will be seen that the sheets 4 and 7 are in this manner held securely in lace on the impression cylinder by the raw-sheet 9. This draw-sheet in this embodiment of the invention illustrated is made of material known commercially as artificial leather and is impervious to oil and water and re gellent to printers ink. The draw-sheet oes not interfere with the resilient sheets in acting as the impression surface of the c linder but serves to keep the impression s eets securely in place and from being soiled by the printers inks and other materials used.

The invention in its broader aspects is not limited to the precise construction described, nor to any particular construction, b which the same has been or may be carried into efl'ect, as changes may be made in the details of the invention, without departing from its main purposes or sacrificing its chief advantages.

I claim:

1. A printers blanket including, in combination, inner and outer sheets, each of resilient material and of a thickness less than standard and ada ted for imprinting directly thereon, botii sheets being assoc ated to present a combined. thickness equal to standard; said sheets being interchangeable in their relative positions and each affording a suitable im ression-surface so that an inner sheet may trans sed and become the outer sheet to form t e impression receiving surface of the blanket.

2. A printers blanket including, in combination, a plurality of identical sheets in superposed relation, each havin its bodyportion formed of the same res; ient material as the other, each of a thickness less than standard, and each adapted for imand, while printing direct] thereon; both sheets bemg cooperative y associated to present a combined thickness e ual to standard and being interchangeable in their relative positions so that an inner sheet may be transposed and become the outer sheet to form the impression-receiving surface of the blanket.

3. A printers blanket including, in combination, a plurality of identical sheets in superposed relation, each sheet being adapted for imprinting directly thereon and of a thickness ap and comprising a base of fabric-material and a body-portion adhering thereto and composed of comminuted cork, said sheets being cooperatively associated to resent a combined thickness equal to stan ard and being interchangeable in their relative positions so that an inner sheet may be transposed and become the outer sheet and form the impression-receiving surface of the blanket.

4. A printers blanket including, in combination, a plurality of identical sheets in superposed relation each sheet being ada ted for imprinting directly thereon and o? a thickness approximately half of standard and comprising a base of fabricmaterial and a body-portion adherin thereto and composed of com'minuted cor said sheets being cooperatively associated to resent a combined thickness e ual to stan ard and being interchangeable in their relative positions so that an inner sheet may be transposed and become the outer sheet and form the impression-receiving surface of. the blanket; and a draw-sheet impervious to oil and water arranged over the outer sheet.

5. A printers blanket including, in combination, a plurality of identical, interchangeable sheet;com onents in super sed relation, each made 0 resilient materia and of a thicknessless than standard, said components bein cooperatively associated to present a com ined thickness equal to standards; one component constituting a resilient support for another of the components and, whi e functioning as such support, havin its serviceabilit preserved and enhan and also afiordmg a suitable impression-receiving surface so that one component may be interchanged with the other.

6. A printers blanket including, as components, a plurality of impression-receiving sheets and a drawsheet, each of the impression-receiving sheets being adapted for imprinting directly thereon and of a thickness less than standard and constitutinga resilient support for the other components nctioning as such support, havin its serviceability preserved an 1 enhanced an com rising a base of fabric-material and a be y-portion adhering thereto and including comminuted cork; said impressionproximately half of standard receiving sheets being cooperatively asso ciated to present a combined thickness equal to standard andbeing interchangeable with each other so that when the sheet which was 5 acting as an impression-receiving component 7 becomes worn it may be transposed and its supportin component be substituted therefor and component, the W 0I'Il sheet then becoming a supporting-component; said draw-sheet being impervious to oil and water and repellent to printers ink and overlying the impression-receiving sheets.

signature hereto.

come the impression-receiving GEORGE L. WILLSON.

In testimony whereof, I have afiixed my receiving sheets being cooperatively asso component, the worn sheet then becoming a mated to present a combined thickness equal supporting-componentg said draw-sheet be- 1 to standard and being interchangeable with ing impervious to oil and water and repeleuch other so that when the sheet which was lent to printers ink and overlying the im- 5 acting as an impression-receiving component pression-recciving sheets. I L

becomes worn it may be transposed and its In testimony whereof, I have aflixed my supporting component be substituted theresignature hereto. for and become the impression-receiving GEORGE L. WILLSON.

DISCLAIMER 1,545,626.-Ge0rge L. Willson', New York, N. Y. Pam'rnns BLANKET. Patent dated July 14, 1925. Disclaimer filed May 27, 1932, by the assignee, New England F 'i'bre Blanket Company.

Hereby enters this disclaimer to the claims numbered 1, 2 and 5 of said Letters Patent, which are in the following words, to-wit:

1. A printers blanket, including, in combination, inner and outer sheets, each of resilient material'and of a thickness less than standard and adapted for imprintin directly thereon, both sheets being associated to present a combined thickness equa to standard; said sheets being interchangeable in their relative positions and each affording a suitable impression-surface so that an inner sheet may be transposed and become the outer sheet to form the impression-receiving surface of the blanket.

2. A printer s blanket including, in combination, a plurality of identical sheets in superposed relation, each having its body-portion formed of the same resilient material as the other, each of a thickness less than standard, and each adapted for imprinting directly thereon; both sheets being cooperatively associated to present a combined thickness equalto standard and being interchangeable in their relative positions so that an inner sheet may be transposed and become the outer sheet to form the impression-receiving surface of the blanket.

5. A rinters blanket including, in combination, a plurality of identical, interchangeab e sheet-components in superposed relation, each made of resilient material and ofa thickness less than standard, said components being cooperatively associated to resent a combined thickness equal to standards; one component constituting a resfiient support for another of the components and, while functioning as such support, having its serviceability preserved and enhanced, and also affording a suitable ingression-receiving surface so that one component may be interchanged with the 0 er.

[Oficial Gazette July 5, 1932.]

DISCLAIMER 1, 545,626.Ge0rge L. Willson, New York, N. Y. PRINTEns BLANKET. Patent dated July 14, 1925. Disclaimer filed May 27, 1932, by the assignee, New England Fibre Blanket Company.

Hereby enters this disclaimer to the claims numbered 1, 2 and 5 of said Letters Patent, which are in the following words, to-wit:

1. A printers blanket, including, in combination, inner and outer sheets, each of resilient materialand of a thickness less than standard and adapted for irnprintin directly thereon, both sheets being associated to present a combined thickness equ to standard; said sheets being interchangeable in their relative positions and each affording a suitable impression-surf ace so that an inner sheet may be transposed and become the outer sheet to form the impression-receiving surface of the blanket.

2; A printers blanket including, in combination, a plurality of identical sheets in superposed relation, each having its body-portion formed of the same resilient material as the other, each of a thickness less than standard, and each adapted for imprinting directly thereon; both sheets being cooperatively associated to present a combined thickness equal to standard and being interchangeable in their relative positions so that an inner sheet may be transposed and become the outer sheet to form the impression-receiving surface of the blanket.

5. A rinters blanket including, in combination, a plurality of identical, interchangeab e sheet-components in superposed relation, each made of resilient material and ofa thickness less than standard, said components being cooperatively associated to resent a combined thickness equal to standards; one component constituting a res ient support for another of the components and, while functioning as such support, having its serviceability preserved and enhanced, and also affording a suitable intilpression-receiving surface so that one component may be interchanged with the 0 or.

[W Gazette July 5, 1.932. 

